Integral sheet-piling.



C. C. CONKLING.

INTEGRAL SHEET FILING.

APPLICATION FILED 001217. 1013 Patented June 9 1914.

UNITED STATES PATENT OFFICE.

CLOUD C. CONKLIING, OF LACKAWANNA, NEW YORK, ASSIGNOR TO LACKAWANNA STEEL COMPANY, OF LACKAWANNA, NEW YORK, A CORPORATION OF NEW YORK.

INTEGRAL SHEET-FILING.

Patented June 9, 1914.

Original application filed February 23, 1912, Serial No. 679,415. Divided and this application filed October To all whom it may concern.

Be it known that I, CLOUD C. CONKLING, a citizen of the United States, residing at Lackawanna, in the county of Erie and State of New York, have invented new and useful Improvements in Integral Sheet-Pilin of which the following is a specification.

y invention relates to steel sheet piling of the ball and socket, or tongue and groove, angular adjustment type and consists in a new form of piling of high resistance both to longitudinal and lateral stresses. ft is a division of my application Ser. No. 679,415 and now Patent 1,076,021, Oct. 2, 1913.

As is now well understood,-it is necessary in most installations to employ scections permitting a certain amount of angular adjustment between adjacent sections in driving, so that the separate sections may somewhat vary their relation to pass by, or around, obstacles met in driving and yet the alinement of the wall as a whole be maintained. Such capability of angular adjustment should be combined with resistance to both longitudinal and lateral stresses in all directions.

The particular form of section here shown and described by which I obtain these results consists of the web having at one end a laterally elongated head and at the other a pair of hooks extending outwardly from the web on each side and having their ends bent back as shown toward each other, but leaving a spacebetween their tips substantially greater than the thickness of the Web and substantially less than the width of the head These hooks therefore form a socket 0r groove substantially larger than the head freely to receive the same in order to permit free driving and also the entrance of filling or packing material to render the joint substantially water tight. But it must not be too large for if so the sections in driving might set back against each other and the wall lose in length.

My invention is fully shown in the drawing herewith'in which the same reference numerals indicate the same parts in all the figures.

Figure 1is a fragmentary isometric view showing the relation of the sections as assembled in the wall. Fig. 2 is substantially the same in plan with the sections pulled tight and one section shown complete.

Serial No. 795,639.

Each section is composed of the web 1, having on one edge the tongue or head composed of the flanges 2 2 outwardly extendmg, one on each side of the web at an angle not much greater than a right angle thereto, so that they are arranged at an obtuse angle to each other leaving a concavity 10 between them at the end of the section. At the other end of the web extends outwardly on each side of the web the hooks 3 3 having their ends 4 4 turned back toward each other but leaving a substantial space between them and thus forming the pocket or groove 5 for receiving the head on an adjacent section. The mouth 6 of the groove is of course narrower than the head but is enough wider than the thickness of the web to permit suflicient swing or angular arrangement of the pile sections with reference to each other. See arrangement at the right of Fig. 2. From this form it therefore results that the inner surfaces 8 of the book ends and the outer surfaces 9 of the head flanges engage and, as said flanges and hook ends extend at an. angle to the web not much greater than a right angle, the stress exerted on the sections, one on the other, will be a direct pull almost parallel to the plane of the web.

As aforesaid the adjacent sections may swing or adjust themselves one on the other in driving to a limited extent and the wall may bend locally in order to pass around obstacles met in driving and yet maintain its general direction. The surfaces in engagement may be curved but the curves are very flat so that the pull against them is i almost straight. that is the hne of engagement which resists the longitudinal stresses is almost at a right angle thereto and therefore the interlock or joint is very strong. Also the width of the head and the width of the socket hooks throws a substantial amount of metal away from the longitudinal axis and thus gives a high moment of in ertia and great resistance to lateral or upsetting strains. The features specified are all of great importance and their combination produces a section which op oses great resistance to lateral and longitudinal stresses and is economical to roll and to install. As is shown, the groove must be substantially larger and deeper than the head so that aspace may be left which renders driving easy, permits suiiicient angular adjustmentand provides'a space for packing material, such as earth, to enter and make the joint substantially water tight.

If desired the sections can be made as indicated with theprojection 12 on the inner surface 13 of the hooks in alinement with. the web to overcome the danger of the sections setting back oneach other too much.

It will be seen that the strength of the interlock is practically the same in all variations of the angular relation of the sections, for as the amount of engagement on one side between the head and one hook diminishes, the amount of engagement on the other side proportionately increases, and the longitudinal stress is in all positions almost perpendicular, or radial, to the engaging surfaces of those parts. When the webs are in alinement, the pull is almost parallel thereto.

Having described my invention I claim,.

1. Ametal sheet piling section comprising a web, a head on one end of the web and a socket on the other end to receive the head of an adjacent section, the head being formed by two flanges outwardly extending one on each side of the web at an obtuse angle to each other to leave a concavity between them at the end of the web, and the socket being formed of two hooked flanges outwardly extending one on each side of the web and having their ends bent reversely toward each other in a direction approaching a right angle to the plane of the web,

said socket being substantially larger than said head, and being wider in the plane at a right angle to the web than it isdeep inthe direction of the axis of the. web.

2. A metal sheet piling section comprising a web, ahead on one end of the w'eb'and; a socket on the other end to receive the head of an adjacent section, the head being formed by two flanges outwardly extending one on each side of. the web at an angle slightly greater than'a right. angle thereto and at an obtuse angle to each other to leave a concavity between them at the end of the web, and the socket being formed of two hooked flanges outwardly extending one on each side of the web and having their ends bent revers'ely toward each other so that they will extend in a direction approaching a right angle to the'plane of the web, said socket being' substantially larger than said head, aspace being left between the hook ends substantially wider than the thickness of the web but narrower than the width of the head.

3. A metal'sheet piling section comprising a web, a head on one end ofvthe web and a socket on the other end to receive the head of an adjacent section, the head being formed by two flanges outwardlyextending one on each side of the web at an angle slightly greater than a right angle thereto and at a very obtuse angle to each other to leave a concavity between them at the end of the web, and the socket being formed of two hooked flanges outwardly extending one on each side of the web and having their ends bent reversely toward each other in a direction approaching a right angle to the plane of the web, said socket being substantially larger than said head and being widerthan it is deep and the inner surfaces of the head flanges adapted to engage with the innor surfaces of the hookends on an ad acent section so that the longitudinal stress will be almost parallel to the plane of the web, and

a space being left between the hook ends,

said space beingsubstantially-greater than the thickness of the web and substantially less than the width of the head. r In testimony whereof'I have signed my name to this'specification in the presence of two subscribing witnesses.

CLOUD C. CONKLING.

Witnesses: g

- J, R. M LLwARn, M; L'BREsLIN. 

